Sunday evening as Keeping Up With The Kardashians was playing on E!, we all found out that a new Kardashian was entering this world compliments of Kourtney Kardashian and Scott Disick.

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RumorFix confirmed Kourtney gave birth to a baby girl at Cedars-Sinai Medical Center in Los Angeles. Sister, Khloe Kardashian Odom tweeted, “Such an amazing day!!!!”

Kim Kardashian released the details on her blog:

“Welcome to the world, Penelope Scotland Disick! Kourtney gave birth to a beautiful baby daughter on Sunday and the whole family is so thrilled to finally meet her! She is absolutely perfect! I am so excited to be an aunt again and can’t wait to spoil little Penelope. I know Mason is going to be the best big brother in the whole world. Congratulations Kourtney and Scott. Xo”